Dr. Munawar Khan presents on the importance of personal hygiene and grooming practices for good health and a smart personality. He discusses that personal hygiene involves prevention of infection through cleanliness and maintenance of healthy living. Some key hygienic practices he recommends include daily bathing, washing hands and feet properly, brushing teeth, wearing clean clothes, and covering your mouth when coughing or sneezing. He also discusses the importance of grooming practices like hair care, skin care, dental hygiene, hand and nail care, and foot care. Maintaining proper personal hygiene and grooming is essential for both physical and mental well-being.